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Kamala Harris is set to deliver remarks at the White House during a celebratory event for the NCAA championship teams of the 2023-2024 season.

It is Harris’ first public appearance addressing the nation since Biden endorsed her to replace him in the presidential race against Donald Trump, minutes after his announcement that he would drop out.

— Rebecca Picciotto

Michigan Gov. Gretchen Whitmer has backed Kamala Harris, quelling any rumblings that she would launch a challenger presidential bid.

“She’s a former prosecutor, a champion for reproductive freedom, and I know that she’s got Michigan’s back,” Whitmer wrote in a statement. “I am fired up to endorse Kamala Harris for President of the United States.”

The endorsement from Whitmer, a governor in a key battleground state, officially puts her on the list of contenders to become Harris’ running mate.

Her backing came alongside several endorsements from other VP hopefuls like Illinois Gov. J.B. Pritzker, Kentucky Gov. Andy Beshear and North Carolina Gov. Roy Cooper.

— Rebecca Picciotto

Tony Evers — the Democratic governor of Wisconsin, a key battleground state — is backing Harris, he announced in a post on X.

“Vice President Kamala Harris is a tenacious leader who has vigorously defended our democracy, fought to protect the freedoms we hold dead, and worked tirelessly to do the right thing and deliver for us,” Evers wrote.

“I’m excited today to endorse Vice President Harris as our nominee for President of the United States. She can beat Donald Trump, and I’m going to do everything I can between now and November 5th to help make sure she does,” he said.

– Josephine Rozzelle

Illinois Gov. J.B. Pritzker has officially endorsed Kamala Harris to take over the top of the Democratic ticket from President Biden.

“Vice President Harris has proven, at every point in her career, that she possesses the skills, strength, and character to lead this country and the vision to better the lives of all Americans,” Pritzker said in a statement. “I believe that she is the most qualified and capable person to be President.”

Pritzker joins Govs. Andy Beshear and Roy Cooper in endorsing Harris, all of whom had previously been floated as potential presidential candidates to replace Biden as pressure mounted on the president to drop out of the race.

— Rebecca Picciotto

Secret Service Director Kimberly Cheatle told a House panel that “we failed” to maintain the agency’s “solemn mission to protect our nation’s leaders” during the attempted assassination of Trump on July 13.

“We must learn what happened and I will move heaven and earth to ensure an incident like July 13th does not happen again,” said Cheatle, who is testifying under subpoena before the House Oversight and Accountability Committee.”

– Dan Mangan

That sure didn’t take long.

A young man was spotted on a Washington, D.C. metro train in the morning wearing a “Harris 2024” t-shirt just a day after President Joe Biden shocked the political world by withdrawing from the presidential election and endorsing his vice president, Kamala Harris, as the Democrat to take his place atop the party ticket.

NBC News Supreme Court reporter Lawrence Hurley snapped the photo of the man and his shirt and tweeted it out.

“I’m about to order mine,” one follower of Hurley’s replied.

In addition to the apparently very quickly-printed shirt, the “Biden for President” campaign committee was officially renamed the Harris for President committee. The move maintains the team’s infrastructure, staff and — crucially — its nearly $100 million in cash reserves to deploy for Harris’ candidacy.

– Dan Mangan

Secret Service Director Kimberly Cheatle is testifying to the House Oversight and Accountability Committee about the attempted assassination of former President Trump on July 13.

Cheatle and her agency have faced intense criticism for failing to stop the shooting of Trump and others at a campaign rally in western Pennsylvania.

She has refused to resign in the face of calls to do so by committee chairman Rep. James Comer, R-Ky., and other lawmakers.

– Dan Mangan

Maryland Gov. Wes Moore has endorsed Harris, writing in a post on X that the vice president has the “experience, record, vision, and wisdom to unify the country.”

“The American people deserve a champion who will continue the progress of the Biden-Harris Administration, and that’s why I am proud to voice my full support and off my full endorsement to Vice President Kamala Harris to be the Democratic Nominee for President,” he wrote.

Moore, a rising star of the Democratic Party, said that Harris was one of the first people to call him after the Francis Scott Key Bridge collapsed in March.

– Josephine Rozzelle

Senate Majority Whip Dick Durbin, D-Ill., the number two Senate Democrat, has officially endorsed Harris to replace President Joe Biden at the top of the ticket.

“Proud to endorse my former Senate colleague & good friend, Kamala Harris,” Durbin wrote in a post on X. “VP Harris was a critical partner in building the Biden record over the past four years. Count me in with Kamala Harris for President.”

He is the next high-ranking Capitol Hill Democrat to back Harris as the party rallies around her. Several Democratic leaders, including Senate Majority Leader Chuck Schumer and House Minority Leader Hakeem Jeffries, both of New York, have yet to issue endorsements.

— Rebecca Picciotto

If she were to be elected president, Vice President Kamala Harris would be a boon for American businesses and the stock market, CNBC’s Jim Cramer says.

“There’s no doubt about it,” Cramer replied when CNBC’s Carlos Quintanilla asked whether Harris would be a “net positive” for business.

“What she offers is a level of understanding about the greatness of the Megacaps that Biden wanted no part of,” Cramer added.

President Joe Biden’s aggressive approach toward corporate America has been a cornerstone of his economic agenda, pledging to fight against big money interests to protect workers and consumer. Cramer sees the switch to Harris as the Democratic frontrunner for president as an opportunity to tone down that rhetoric.

Cramer also drew a contrast between what he sees as the increasingly populist message of Donald Trump and his running mate, Ohio Sen. JD Vance.

“This nativist plan from Trump is so bad for all our companies to do business overseas,” he said.

— Rebecca Picciotto

Two of the House’s top Democrats have formally endorsed U.S. Vice President Kamala Harris to replace President Joe Biden at the top of the ticket in the race against Donald Trump.

House Democratic Caucus Chairman Pete Aguilar, D-Ca., and House Minority Whip Katherine Clark, D-Ma., came out in support of Harris. Their endorsements serve as the next signal that the Democratic Party is beginning to coalesce around their new frontrunner candidate after several weeks of infighting, as Biden faced pressure to step down.

“I know Kamala to be a fierce advocate for working families and a tough-minded prosecutor who knows right from wrong,” Aguilar said in his Monday statement.

Clark echoed Aguilar’s ringing endorsement: “I’m proud to stand with Kamala and excited to get to work to elect her!”

The number one Democrat in the House, Minority Leader Hakeem Jeffries, D-N.Y., has yet to endorse Harris — a notable silence as the party rallies around the vice president.

— Rebecca Picciotto

North Carolina Gov. Roy Cooper, 67, emphasized that U.S. Vice President Kamala Harris is “ready to run this race” to win the presidency, while holding his cards close on whether he would consider becoming her running-mate.

“I am confident that she can win this election, because she has to,” he said Monday on MSNBC’s “Morning Joe.”

Asked whether he would consider joining her ticket as running-mate, he said, “I appreciate people talking about me, but I think the focus right now needs to be about her this week, and she needs to concentrate on making sure she secures this nomination.”

Harris has received the endorsement of current U.S. President Joe Biden, who dropped his re-election bid on Sunday, but must still formally clinch the Democratic ticket.

Cooper stressed “the vice presidential conversation needs to occur later,” while pledging that he will work to support her campaign.

— Ruxandra Iordache

High-profile independent Sen. Joe Manchin, who left the Democratic Party in May but has the option to re-register with the faction, has ruled out throwing his hat in the ring for the top White House job during the race this fall.

“No, no. I’m not intending to run for any political office,” he confirmed during MSNBC’s “Morning Joe,” stressing that he will be retiring from the Senate.

He expressed disappointment over the lack of a primary run-off following U.S. President Joe Biden’s decision to drop his re-election bid, which he said would have been an opportunity to witness the “cream of the crop of the new generation.”

“It would have been great to see what their thoughts were,” he noted.

Asked whether he too would now endorse Harris, he said he wishes to “see what her platform is and her position.”

— Ruxandra Iordache

Kentucky Gov. Andy Beshear, 46, formally endorsed Vice President Kamala Harris’ presidential campaign, addressing questions on whether he would be willing to join as her running-mate.

“I fully endorse Kamla Harris,” Beshear said during MSNBC’s “Morning Joe” on Monday. “I’m going to do everything I can to support her.”

Asked whether he would agree to step in as Harris’ running-mate, if the position were offered, he said, “Let me first say I love my job, I love serving the people of Kentucky … The only way I would consider something other than this job is if I believe I could further help my people.”

He stressed that Harris’ record is one of “standing up for people.”

“I think if somebody calls you on that, what you do is at least listen. And I want the American people to know what a Kentuckian is, what they look like. Because I want you to know, JD Vance ain’t from here,” he said with reference to Donald Trump’s running-mate.

— Ruxandra Iordache

Rep. James Clyburn (D-South Carolina), who has endorsed Kamala Harris’ presidential bid, has underlined the strength of her debating and prosecutorial skills as assets in the upcoming campaigning period.

“She can debate. I would look forward to seeing her … on the stage, in a debate,” he said Monday during MSNBC’s “Morning Joe.”

“She is well equipped to prosecute, I’m going to emphasize, to prosecute the case against Donald Trump,” he said, adding that Trump has previously been defeated by prosecutors — a likely reference to the former U.S. president’s legal battles — and “he will lose against this one.”

Harris has a background in law and previously served as an attorney.

— Ruxandra Iordache

New York City’s Democratic mayor has praised Vice President Kamala Harris as the party’s potential nominee, citing her prosecutorial background.

“I think that she is the voice that the party needs right now,” he said Monday during MSNBC’s “Morning Joe,” stressing that Harris’ prosecutorial background as a former attorney would help strike “the balance of public safety and justice” currently needed in the U.S.

He noted that the public needs to see a candidate engaging with “real” issues such as housing and securing national borders.

“Moving to this very important position, I think she’s ready for it,” he said of Harris.

— Ruxandra Iordache

U.S. Vice President Kamala Harris held multiple phone conversations with President Joe Biden before he announced he would step down from the presidential race, according to NBC News reporting citing a source familiar with her day.

Wearing a Howard University sweatshirt, workout sweats and sneakers, Harris spent more than 10 hours at the VP residence, placing calls to shore up the support of “over 100 party leaders, Members of Congress, governors, labor leaders, and leaders of advocacy and civil rights organizations,” the source said.

The vice president arranged meals for aides, enjoying pizza and salad for dinner — with Harris’ own pie coming with her go-to topping of anchovies.

— Ruxandra Iordache

U.S. Vice President Kamala Harris is “well poised” to clinch the Democrat nomination, after President Joe Biden bowed out of the race and endorsed her campaign, a former chief spokesperson to Harris said.

“I do think that she is well poised to lock up this nomination,” Symone Sanders-Townsend told MSNBC’s “Morning Joe,” stressing that campaigning against former President Donald Trump is “not going to be an easy race.”

Sanders-Townsend underlined that Harris was already doing the work to shore up backing for her platform as of Sunday, when she formally launched her campaign.

“The vice president was on the phone all day long yesterday, asking people for their support, not just expecting to get it,” Sanders-Townsend said, noting that Harris’ loyalty to Biden throughout the latter’s re-election bid will play into her own campaign.

“Joe Biden is a remarkable man, he is selfless, and frankly what he did yesterday, very few elected officials in this country would be willing to do,” Sanders-Townsend added.

— Ruxandra Iordache

German Chancellor Olaf Scholz views U.S. Vice President Kamala Harris as an “experienced and competent politician,” a government spokesperson said Monday, according to Reuters.

The spokesperson added that Scholz has previously met with Harris on several occasions and established “a certain closeness and familiarity.”

Earlier in the day, German Foreign Minister Annalena Baerbock praised U.S. President Joe Biden’s decision to renounce his re-election bid and endorse Harris, as a sign of his prioritizing national interests over personal ones.

— Ruxandra Iordache